Application of nonlinear conjugate gradient method in geostrophic velocity calculation of Kuroshio in the East China Sea

CHEN Hong-xia; YUAN Ye-li; Liu Na; QU Yuan-yuan

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Article Navigation > Haiyang Xuebao > 2003 > 25(6): 31-38

CHEN Hong-xia, YUAN Ye-li, Liu Na, QU Yuan-yuan. Application of nonlinear conjugate gradient method in geostrophic velocity calculation of Kuroshio in the East China Sea[J]. Haiyang Xuebao, 2003, 25(6): 31-38.

Citation:

CHEN Hong-xia, YUAN Ye-li, Liu Na, QU Yuan-yuan. Application of nonlinear conjugate gradient method in geostrophic velocity calculation of Kuroshio in the East China Sea[J]. Haiyang Xuebao, 2003, 25(6): 31-38.

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Application of nonlinear conjugate gradient method in geostrophic velocity calculation of Kuroshio in the East China Sea

Key Laboratory of Marine Science and Numerical Modeling of State Oceanic Administration, Qingdao 266061, China;First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China

Received Date: 2002-09-05
Rev Recd Date: 2003-01-15

Abstract

Abstract

Based on several methods of geostrophic velocity calculation, nonlinear conjugate gradient method is introduced.Sharing the same dynamical characteristics and inherent hypotheses with PV method, this approach is simple, effective, easy-expanded and wide-applicable.By using of this method, geostrophic velocity of Kuroshio in the East China Sea is studied using the CTD data of six cruises gained in the Sino-Japan joint investigation and the study on the Kuroshio since April 1989.Compared with observation data of shipbroad ADCP, the nonlinear conjugate gradient method has been proved feasible.
- nonlinear conjugate gradient method,
- Kuroshio in the East China Sea,
- method application

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References(12)

References

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